Picture guest
Enter "Chris Sawyer" as a guest name to have them walk around and take pictures of your park.

Painting guest
Enter "Simon Foster" as a guest name to have them walk around and paint pictures in your park.

Waving guest
Enter "Katie Brayshaw" as a guest name to have them walk around and wave to everyone they meet.

Hungry guest
Enter "Tony Day" as a guest name.

Happy guest
Enter "Melanie Warn" as a guest name.

Double payment for rides guest
Enter "John Mace" as a guest name.

"Wow!" thinking guest
Enter "John Wardley" as a guest name.

Intamin fan
Enter "Elissa White" as a guest name.

Faster Go-Karts
Enter "Damon Hill" as a guest name. Enter "Michael Schumacher" as a guest name to race even faster.

Slower Go-Karts
Enter "Mr Bean" as a guest name.

Multiple names
You can have more than one person with the same name (which works well when using the cheats) by changing the capitalization of various letters. For example "Chris Sawyer" can be used on another person by making all letters lower or upper case ("chris sawyer" and "CHRIS SAWYER").

Guests never leave
Put a "No Entry" sign by the entrance, facing away from the entrance. Guests can still come in, but will not leave. Note: This may cause your park rating to decrease, because many guests will be "lost" and want to go home.

Extra building space
Build a ride or attraction such as a maze. You can now build on top of that with smaller rides (for example, bumper cars).

Change operating options without losing any guests that are queuing
Click on a ride, pause game play, close the ride, then go to "Operating Options". Change the operating mode for the ride, then open the ride.